Mischa Barton by Kevin Mazur/WireImage.com Mischa Barton by Kevin Mazur/WireImage.com

Why, oh why, won't these celebs just hire drivers if they insist on going out and getting hammered? The newest edition to the celebrity DUI list of fun is none other than 21 year-old O.C. starlet, Mischa Barton. The actress was arrested in West Hollywood when police noticed Barton was straddling two lanes of traffic. The least she could have done is pony up for a cab!

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